A052093 a(n)^4 is the smallest fourth power whose decimal expansion digits occur with same frequency n.

0, 207, 130398, 5694207, 426424828, 18304641024, 1002719491659

Offset: 1

Author

Patrick De Geest, Jan 15 2000

Keywords

• nonn
• base
• hard
• more

Comments

Terms calculated by Jeff Heleen.

Examples

			207^4 = 1836036801 and digits 0,1,3,6 and 8 each occur twice.
		

Links

• Patrick De Geest, Numbers whose digits occur with same frequency

Crossrefs

Cf. A052094, A052069, A052071.

Programs

Python

g = agen(POW=4) # agen() in A054212
print([next(g) for n in range(1, 5)]) # Michael S. Branicky, Dec 17 2020

Extensions

Offset corrected by Michel Marcus, Aug 12 2015

a(6) corrected and a(7) from Michael S. Branicky, Dec 17 2020